This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 31 |
| 4 | 1979 |
| 5 | 41203 |
| 6 | 752251 |
| 7 | 5647457 |
| 8 | 32465047 |
| 9 | 245333233 |
| 10 | 245333213 |
| 11 | 27797667517 |
| 12 | 196559847120517 |
| 13 | 3040284075731561 |
| 14 | 253253149671986983 |